Kieft query

Sir,
I have recently purchased a Jap 500-engined single-seater which I feel might be an early Formula Three Kieft. The car lay dormant in Cardiff for some 30 years before being purchased by an acquaintance who has passed it on to me.

It was apparently owned and raced, or hill-climbed, by a Mr Kitchen (?) and may have competed at Lydstep in the 1950s. Any assistance in researching the history of the car, or confirming its identity, would be appreciated.

AE Fogg, Cyncoed, Cardiff